DSPbios用户手册资源-CSDN文库

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《DSPbios用户手册》是一份针对使用Texas Instruments（TI）TMS320 DSP系列数字信号处理器的开发工程师所编写的文档，它详细介绍了DSP/BIOS版本5.42的使用方法。该手册作为Code Composer Studio（CCS）5.3或更高版本安装的一部分，也可通过DSP/BIOS 5.42的独立安装程序配合CCS 5.1或CCS 5.2版本使用，但不再支持CCS版本3和版本4。 DSP/BIOS是一个实时操作系统，专为TI公司的TMS320系列DSP设备设计，目的是帮助开发主流嵌入式实时软件的工程师们。它提供了小型的固件实时库和易于使用的实时跟踪与分析工具。此外，手册中也建议用户阅读并熟悉与平台相对应的TMS320 DSP/BIOS API参考指南，后者是用户指南的姊妹篇。该手册使用了一些特定的排版约定，例如程序列表、代码示例和交互式显示内容会使用一种特殊的字体来呈现。例如，代码示例可能会使用加粗的特殊字体以突出显示重要部分，而交互式显示则会用加粗的特殊字体来区分用户输入和系统显示的内容（如提示符、命令输出、错误信息等）。此外，文中的某些约定如方括号（[]）表示可选参数，使用时需要在方括号内填入指定的信息，但不包含方括号本身，除非方括号是加粗的。在文档中，“64”可能代表特定于具体DSP平台的两位数字数值。例如，基于C62x的DSP平台，文档中出现“64”的地方，应该用“62”来替换；对于基于C64x、C55x或C28x DSP平台，应该相应地替换为“64”、“55”或“28”。手册中还特别指出，Code Composer Studio C5000的引用可以根据用户的DSP平台替换为Code Composer Studio C6000。特定于某个设备的信息则通过特定图标来标注。 DSP/BIOS 提供的特性包括： 1. 实时内核（Real-Time Kernel）：它包括任务管理、中断处理、硬件抽象层、同步对象等，为系统提供多任务和事件处理功能。 2. 实时分析工具（Real-Time Analysis Tools）：包括实时数据记录、性能分析、系统性能分析、堆栈跟踪、任务状态显示和CPU使用情况分析等。 3. 中断服务例程（Interrupt Service Routines, ISR）：支持高效的中断处理。 4. 高级配置：提供配置工具，简化了系统的初始化和配置过程，通过图形界面允许用户配置内核对象、ISR、分析工具等。 5. DSP/BIOS桥接：能够与TI提供的其他软件和硬件产品桥接，提供更加强大的开发环境。 6. 动态内存管理：为应用程序提供动态内存分配、内存池管理等服务。手册还包括对DSP/BIOS的API的详细描述，这些API涉及中断管理、任务调度、内存管理、定时器、信号量、邮箱、队列等各个方面，对于编程人员来说，掌握这些API是进行DSP开发的必要条件。API的使用示例和相关配置会在文档中有详细说明，以及如何进行调试和性能监控。由于本文档是通过OCR扫描识别生成，因此在阅读时可能需要结合上下文和专业知识来理解一些可能因为扫描原因导致的模糊或错误文字，以保证手册内容的正确理解。

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TMS320 DSP/BIOS v5.42

User’s Guide

Literature Number: SPRU423I

August 2012

SPRU423I—August 2012 Read This First 2

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Preface

SPRU423I—August 2012

Read This First

About This Manual

This manual describes DSP/BIOS 5.42, which may have been installed as part of the Code Composer

Studio (CCS) 5.3 or higher installation. The standalone installer for DSP/BIOS 5.42 can be used with

CCS 5.1 or CCS 5.2. (CCSv3 and CCSv4 are no longer supported by DSP/BIOS.)

DSP/BIOS gives developers of mainstream applications on Texas Instruments TMS320 DSP devices the

ability to develop embedded real-time software. DSP/BIOS provides a small firmware real-time library

and easy-to-use tools for real-time tracing and analysis.

You should read and become familiar with the TMS320 DSP/BIOS API Reference Guide for your

platform. The API reference guide is a companion volume to this user’s guide.

Notational Conventions

This document uses the following conventions:

•

Program listings, code examples, and interactive displays are shown in a special typeface.

Examples use a bold version of the special typeface for emphasis; interactive displays use a

bold version of the special typeface to distinguish commands that you enter from items that the

system displays (such as prompts, command output, error messages, etc.).

Here is a sample program listing:

Void copy(HST_Obj *input, HST_Obj *output)

{

PIP_Obj *in, *out;

Uns *src, *dst;

Uns size;

}

•

Square brackets ( [ and ] ) identify an optional parameter. If you use an optional parameter, you

specify the information within the brackets. Unless the square brackets are in a bold typeface, do not

enter the brackets themselves.

•

Throughout this manual, 64 can represent the two-digit numeric appropriate to your specific DSP

platform. If your DSP platform is C62x based, substitute 62 each time you see the designation 64.

For example, DSP/BIOS assembly language API header files for the C6000 platform will have a suffix

of .h62. For the C2800 platform, the suffix will be .h28. For a C64x, C55x, or C28x DSP platform,

substitute 64, 55, or 28 for each occurrence of 64. Also, each reference to Code Composer Studio

C5000 can be substituted with Code Composer Studio C6000 depending on your DSP platform.

•

Information specific to a particular device is designated with one of the following icons:

3 Read This First SPRU423I—August 2012

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Related Documentation From Texas Instruments www.ti.com

Related Documentation From Texas Instruments

The following sources describe TMS320 devices and related support tools. To obtain a copy of any of

these TI documents, visit the Texas Instruments website at www.ti.com.

TMS320C28x DSP/BIOS API Reference (literature number SPRU625)

TMS320C5000 DSP/BIOS API Reference (literature number SPRU404)

TMS320C6000 DSP/BIOS API Reference (literature number SPRU403)

describes the DSP/BIOS API functions, which are alphabetized by name. The API Reference Guide is the

companion to this user’s guide.

DSP/BIOS Textual Configuration (Tconf) User’s Guide (literature number SPRU007) describes the scripting

language used to configure DSP/BIOS applications.

DSP/BIOS Driver Developer's Guide (literature number SPRU616)

describes the IOM model for device driver development and integration into DSP/BIOS applications.

DSP/BIOS wiki page:

http://processors.wiki.ti.com/index.php/Category:DSPBIOS

Code Composer Studio Online Help provides information about Code Composer Studio.

Code Composer Studio wiki page:

http://processors.wiki.ti.com/index.php/CCSv5

TMS320C2000 Assembly Language Tools User's Guide (SPRU513)

TMS320C55x Assembly Language Tools User’s Guide (SPRU280)

TMS320C6000 Assembly Language Tools User's Guide (SPRU186)

describes the assembly language tools (assembler, linker, and other tools used to develop assembly lan-

guage code), assembler directives, macros, common object file format, and symbolic debugging directives

for the C5000 generation of devices.

TMS320C2000 Optimizing C/C++ Compiler User's Guide (literature number SPRU514) describes the C2000

C/C++ compiler and the assembly optimizer. This C/C++ compiler accepts ANSI standard C/C++ source

code and produces assembly language source code for the C2000 generation of devices. The assembly

optimizer helps you optimize your assembly code.

TMS320C55x Optimizing C Compiler User’s Guide (literature number SPRU281) describes the C55x C

compiler. This C compiler accepts ANSI standard C source code and produces TMS320 assembly language

source code for the C55x generation of devices.

TMS320C6000 Optimizing C Compiler User's Guide (literature number SPRU187) describes the C6000

C/C++ compiler and the assembly optimizer. This C/C++ compiler accepts ANSI standard C/C++ source

code and produces assembly language source code for the C6000 generation of devices. The assembly

optimizer helps you optimize your assembly code.

TMS320C55x Programmer's Guide (literature number SPRU376) describes ways to optimize C and assembly

code for the TMS320C55x DSPs and

includes application program examples.

TMS320C6000 Programmer's Guide (literature number SPRU189) describes the C6000 CPU architecture,

instruction set, pipeline, and interrupts for these digital signal processors.

SPRU423I—August 2012 Read This First 4

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www.ti.com Related Documentation

TMS320C6000 Peripherals Reference Guide (literature number SPRU190)

describes common peripherals available on the TMS320C6000 family of

digital signal processors. This book includes information on the internal data and program memories, the

external memory interface (EMIF), the host port, multichannel buffered serial ports, direct memory access

(DMA), clocking and phase-locked loop (PLL), and the power-down modes.

TMS320C28x DSP CPU and Instruction Reference Guide (literature number SPRU430).

Related Documentation

You can use the following books to supplement this reference guide:

The C Programming Language (second edition), by Brian W. Kernighan and Dennis M. Ritchie,

published by Prentice-Hall, Englewood Cliffs, New Jersey, 1988

Programming in C, Kochan, Steve G., Hayden Book Company

Programming Embedded Systems in C and C++, by Michael Barr, Andy Oram (Editor), published by

O'Reilly & Associates; ISBN: 1565923545, February 1999

Real-Time Systems, by Jane W. S. Liu, published by Prentice Hall; ISBN: 013099651, June 2000

Principles of Concurrent and Distributed Programming (Prentice Hall International Series in

Computer Science), by M. Ben-Ari, published by Prentice Hall; ISBN: 013711821X, May 1990

American National Standard for Information Systems-Programming Language C X3.159-1989,

American National Standards Institute (ANSI standard for C); (out of print)

Trademarks

MS-DOS, Windows, and Windows NT are trademarks of Microsoft Corporation.

The Texas Instruments logo and Texas Instruments are registered trademarks of Texas Instruments.

Trademarks of Texas Instruments include: TI, XDS, Code Composer, Code Composer Studio, Probe

Point, Code Explorer, DSP/BIOS, RTDX, Online DSP Lab, BIOSuite, SPOX, TMS320, TMS320C54x,

TMS320C55x, TMS320C62x, TMS320C64x, TMS320C67x, TMS320C28x, TMS320C5000,

TMS320C6000 and TMS320C2000.

All other brand or product names are trademarks or registered trademarks of their respective companies

or organizations.

August 15, 2012

SPRU423I—August 2012 Contents 5

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Contents

1 About DSP/BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.1 DSP/BIOS Features and Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.2 DSP/BIOS Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

1.3 Naming Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

1.4 For More Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2 Program Generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.1 Using DSP/BIOS in CCS Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.2 Using the DSP/BIOS Configuration Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

2.3 How hello.c Uses DSP/BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

2.4 The Development Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.5 Configuring DSP/BIOS Applications Statically . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

2.6 Creating DSP/BIOS Objects Dynamically. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

2.7 Files Used to Create DSP/BIOS Programs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

2.8 Using Makefiles to Build Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

2.9 Using DSP/BIOS with the Run-Time Support Library. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

2.10 DSP/BIOS Startup Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

2.11 Using C++ with DSP/BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

2.12 User Functions Called by DSP/BIOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

2.13 Calling DSP/BIOS APIs from Main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

3 Instrumentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

3.1 An Overview of Real-Time Analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

3.2 Real-Time Analysis Tools in CCS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

3.3 RTOS Object Viewer (ROV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

3.4 Instrumentation Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

3.5 Instrumentation APIs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

3.6 Implicit DSP/BIOS Instrumentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

3.7 Instrumentation for Field Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

3.8 Real-Time Data Exchange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

4 Thread Scheduling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

4.1 Overview of Thread Scheduling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

4.2 Hardware Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

4.3 Software Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

4.4 Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

4.5 The Idle Loop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

4.6 Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

4.7 Semaphores . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127

4.8 Mailboxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

4.9 Timers, Interrupts, and the System Clock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137

4.10 Periodic Function Manager (PRD) and the System Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140